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tan-2-x-tan-2-2x-tan-2-4x-33-x-




Question Number 103984 by dw last updated on 18/Jul/20
    tan^2 (x)+tan^2 (2x)+tan^2 (4x)=33                                   x=?
$$\:\:\:\:\boldsymbol{{tan}}^{\mathrm{2}} \left(\boldsymbol{{x}}\right)+\boldsymbol{{tan}}^{\mathrm{2}} \left(\mathrm{2}\boldsymbol{{x}}\right)+\boldsymbol{{tan}}^{\mathrm{2}} \left(\mathrm{4}\boldsymbol{{x}}\right)=\mathrm{33} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\boldsymbol{{x}}=? \\ $$
Commented by behi83417@gmail.com last updated on 19/Jul/20
Nice to see you again mr proph:MJS.
$$\mathrm{Nice}\:\mathrm{to}\:\mathrm{see}\:\mathrm{you}\:\mathrm{again}\:\mathrm{mr}\:\mathrm{proph}:\mathrm{MJS}. \\ $$

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